Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

The first declared National Monument in the United States.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

Every president in history is immortalized in bronze in downtown Rapid City.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

Just a man taking his prehistoric pet for a stroll.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

An experimental, automotive replica of Stonehenge.

This erect, phallic geological spire wasn't always named so domestically.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A cemetery housing wild west legends in South Dakota.

After covering almost 1.5 billion acres, the survey's still not finished.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

10,500 square feet of pinball housed in former dollar store and home to the last playable "Thunderball."

In an odd geographic anomaly this city borders two different states on opposite sides of town.

This California artist's front yard acts as a gallery for his unique, scrap metal animal sculptures.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

A storybook church made from a mesmerizing medley of multi-colored stones.